The present disclosure describes systems and methods for configuring and operating a cellular telephone as a cordless telephone handset. Some illustrative embodiments may include a communications device that includes a cellular telephone radio frequency (RF) transceiver, a radio frequency identification (RFID) transceiver; and control logic coupled to the cellular telephone RE transceiver and the RFID transceiver. The control logic configures the RFID transceiver and enables the communications device to communicate with a cordless telephone base station.